Timer switch Eltako TF-SUD — wireless radio timer, max range 30 m

Eltako TF-SUD is a wireless radio timer switch for flush-mount installation, designed to control lighting and electrical loads without additional wiring. The unit supports radio operation with a maximum free-field range of 30 m and enables scheduled switching of circuits, making it suitable for retrofits and installations where remote timing control is required.

Advantages

The wireless design allows installation in existing switch boxes without new cabling. The device provides reliable timed switching via radio signals and is compatible with standard flush-mounted installation depths. Its compact form factor and radio range of up to 30 m (in free field) simplify integration into home and small commercial electrical systems.

Suitable for

Key specifications

How to use

Install the TF-SUD in a standard flush-mounted junction box following local electrical regulations and disconnect power before installation. Pair the unit with compatible Eltako radio transmitters or a control system according to the manufacturer’s pairing procedure. Configure the required on/off schedules using the associated radio controller or programming interface, then restore power and verify timed switching operation.

Recommendations

Install the device where radio reception is unobstructed for best range; avoid placing it near large metal housings or dense concrete where radio range may be reduced. For safe installation and compliance with regulations, use a qualified electrician.